code: def setUpClass(cls):
      env_config_path = os.path.abspath(
          os.path.join(os.path.dirname(__file__), "..", "..", ".env")
      )
      load_dotenv(env_config_path)
  
file_path: nlpaug/test/util/text/test_tokenizer.py
imports: import unittest
  import os
  import numpy
  from dotenv import load_dotenv
  from nlpaug.util.text.tokenizer import Tokenizer
label_desc: Use image node_id 1 for calling the TestTokenizer obj's underlying member method code with example usage: obj.setUpClass(cls) without return types